NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their unique expertise and with regard for appropriate balance.

The National Academy of Engineering was established in 1964, under the charter of the National Academy of Sciences, as a parallel organization of outstanding engineers. It is autonomous in its administration and in the selection of its members, sharing with the National Academy of Sciences the responsibility of advising the federal government. The National Academy of Engineering also sponsors engineering programs aimed at meeting national needs, encourages education and research, and recognized the superior achievements of engineers. Wm. A. Wulf is the president of the National Academy of Engineering.

Support for this project was provided by the United States-Asia Environmental Partnership, a program of the Agency for International Development (under grant no. AEP-A-00-97-00014-00). The views presented in this report are those of the Committee on Industrial Environmental Performance Metrics and are not necessarily those of the funding organization.